Smoking-pipe



'(Nomdel.)

D. M. POLIN.

SMOKING PIPE.

Patented Mar. 10, 18911.

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UNITED STATES PATENT OFFICE.

DAHASE M. POULIN, OF BOSTON, MASSACHUSETTS.

SMOKING-PIPE.

SPECIFICATION forming part of Letters Patent No. 447,792, dated March 10, 1891.

Application filed May 26,1890. Serial No. 353,152. (No model.) i

To all whom t may concern:

Be it known that I, DAMASE M. POULIN, of

Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Smoking-Pipes, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to a smoking-pipe, and has for its object toA provide for the condensation and separation of the volatile materials from the smoke in order to prevent the inj urious effect upon the system.

The invention is embodied in a pipe having a bowl provided with the usual stem and containing an internal removable receptacle which fits closely in the bore of the bowl and is longitudinally movable therein. The said internal receptacle is provided at its top with a cover of foraminous material on which the tobacco is supported and through which the smoke passes into the receptacle below,which is provided with a passage arranged to communicate with the stem of the pipe inthe varions positions that the inner receptacle assumes while the pipe is being smoked. The draft through the stem of the pipe thus exhausts the receptacle, so that the smoke passes down into it before passing out through the stem, and the volatile products of the smoke are condensed and collected in said recepta` cle. The receptacle may be moved up in the bowl of the pipe as the tobacco is consumed, so that the combustion of the tobacco may always take place close to the top of the pipe and the tobacco may be entirely consumed and all reduced to ashes. If desired, the receptacle may be provided with such chemicals as will render the smoke a means for treating certain affections of the pharynX.

Figure l is a longitudinal section of a pipe embodying this invention, the inner receptacle being shown in full lines in the lowest position assumed in the use of the pipe, the bowl of which may then contain its maximum charge of tobacco, while the receptacle is shown in dotted lines in the position assumed when the tobacco is nearly smoked or when a small charge is used. Fig. 2 is a similar sectional view showing the parts in position for discharging the contents of the oollecting-1e ceptacle without removing the same from the bowl of the pipe; Figs. 3 and 4, a side elevation and plan view, respectively, of the inner receptacle removed from the bowl; and Fig. 5, a sectional view showing a modified construction.

The bowl a maybe of any suitable or usual shape and material, being provided with the usual stem b, through which the smoke is withdrawn. The said bowl a is open at its lower end, and has a uniform bore a2, in which is contained the movable inner collecting-re ceptacle c, which may be of any desired material, glass being preferred, on account of its cleanliness, and owing to the fact that its contents can be seen from the outside, although it is obvious that metal may be employed, if desired. The said receptacle is provided at its top with a cover d of foraminous material, such as gauze or netting, on Which the tobacco is supported, and through which the smoke passes down into said receptacle, which is provided near its upper part with a passage c2, that communicates with the stern b of the pipe, which always enters below the top d of the receptacle when the pipe is in use. The said receptacle c is longitudinally movable in the bore of the bowl, as indicated in full and dotted line positions, Fig. l, and may also be capable of rotation therein, as is shown by a comparison of Figs. l and 2.

When a large charge of tobacco is to be used in the bowl of the pipe, the receptacle c is moved Well down in the bowl, as shown in full lines, Fig. 1, leaving a large space above its top d in the bowl to receive the tobacco, and in order that combustion may always be near the top of the bowl and may be free and uniform the receptacle c is moved up from time to time as the upper part of the/tobacco is consumed, thus raising the charge of tobacco until finally it is wholly consumed.

The receptacle c must remain in communication with the passage through the stem b during such movement, and in order to accomplish this result the passage c2 may be made of sufficient length to extend over the end of the stem-passage in all positions of the inner receptacle, or, preferably, the said passage c2 is Inade in a depression or groove c3 in the Side of the receptacle, which affords communication from the stem to the passage ci and' perforated top into the said chamber and' inally to pass out from the chamber into the` stem, the said smoke being cooled in the chamber and the volatile products condensed therefrom and collected in the chamber.

The liquids collected in the chamber c may be emptied from time to time, if desired, and the said chamber cleaned by removing it wholly from the bowl, and if it is desired at any time to empty the chamber while smoking without disturbing1 the tobacco that may then be in the pipe this can be eiiected by turning the chamber c around in the bowl to the position shown in Fig. 2, and then tipping the bowl, as shown, so that the contents of the chamber will flow out through the passage o and through the space in the groove c3, which is then uncovered by the bowl, as shown, the part of the bowl opposite the stem terminating above the part at the same side of the stem.

If desired, the sides of the bowl may be recessed or shaped as indicatedbythe dotted line a3, Fig. 2, so as to afford a better opportunity for manipulating the inner chamber c, it being necessary only that the said bowl should have a downwardly-extending portion @4below the stem,so as to cover and close communication between the groove oS and the outside of the pipe, except through the stem and tobacco when the receptacle is. in its lowest position.

Instead of having the groove c3 terminate above the bottom of the receptacle c' and covered by a downward extension alf of the bowl, as shown in Fig. l, it may be made as shown in Fig. 5,the bowl being provided with an internal projection ad@ just below the stem-opening, which projection fills the groove c3 and prevents direct communication through the said groove outward at the lower end of the bowl. Tith this construction rotation of the receptacle is prevented as long as the same is in such position that the groove engages with the projection n.40; but the receptacle may be emptied by moving it down far enough to bring the passage c2 below the said projection ai, as shown in dotted lines, Fig. 5. \Vith this construction the groove may, if desired, extend'the entire length of the receptacle, so that it can be moved longitudinally up entirely through the bore of the bowl.

Vt'hen the pipe is not in use, the inner receptacle can be pushed up into the bowl, so as not to project below the opening at the bottom of the bowl, so that the pipe will be as compact as an ordinary pipe not provided with the movable collecti11g-receptacle.

I claiml. A pipe having a bowl open at top and bottom and a stem, combined with a receptacle longitudinally movable in said bowl, said receptacle having a perforated top for supporting the tobacco in the bowl and a side passage communicating with the stem of the pipe in the various positions of said receptacle, substantially as described.

2. The combination of a bowl open at top and bottom and having a longitudinal bore with a receptacle c, longitudinally movable therein, said receptacle having a perforated top `and a groove or depression in its side, and the bowl having a lateral passage leading from said groove in the said receptacle, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

DAMASE M. POULIN. Yitnesses:

Jos. P. Lvnnnonn, M. E. HILL. 

